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Composite material comprising synthetic filler and specific polymer

a technology of synthetic filler and specific polymer, which is applied in the field of composite materials comprising fillers and specific polymers, can solve the problems of release of undesirable components and insufficient adhesion between polymer and filler

Active Publication Date: 2019-06-11
PLANTICS BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a composite material made with a synthetic particulate or fibrous filler and a polyester derived from glycerol and tricarboxylic acid. This composite material has good thermal properties and can be used to make fire protecting covers and other items that can protect the human or animal body. The technical effects of this invention allow for better protection against fire and thermal loads.

Problems solved by technology

Depending on their nature, they may cause the slow release of formaldehyde and when burned they may cause the release of undesirable components.
Further, the adhesion between the polymer and filler is not always adequate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0111]Citric Acid Monohydrate (18 grams) and glycerol (9 grams) were heated to 100° C. for 15 minutes with stirring in an open beaker until a homogeneous solution was obtained.

[0112]Glass mats (non-woven, 1.7 grams, 5 layers of 3*10 cm) were impregnated with 6 grams of the glycerol-citric acid monohydrate composition at 75° C. The sample was cured between silicone rubber sheets placed in between two ceramic tiles under a weight of 2 kg. A rigid porous composite was obtained.

example 2

[0113]As in Example 1 above, 5 layers of non-woven glass mats (3*10 cm) were impregnated with glycerol:citric acid monohydrate (1:1 molar) at 75° C. The sample was cured in a hand-operated heating press at 140° C. under 18 bars of pressure. Initially over the first 20 minutes the pressure was seen to increase up to 13 bars by itself. After this period it was kept constant manually to 10 bars for 12 hrs. A rigid white glass-resin composite was obtained.

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Abstract

A composite material comprising 20-98 wt. % of a synthetic particulate or fibrous filler and at least 2 wt. % of a polyester derived from an aliphatic polyalcohol with 2-15 carbon atoms and a polyacid, wherein the alcohol comprises at least 50 mole % of glycerol, and the acid comprises at least 50 wt. % of tricarboxylic acid.Preferably, the filler is in the form of particles, fibers, and / or random or non-random layers. Preferably, the filler is based on one or more of ceramic, including glass, in particular glass fibers, polymer, in particular polymer fibers, and carbon, in particular carbon fibers. The use of glass fiber based sheet-like material as filler is a particular embodiment of the invention.The composite material according to the invention has fire-retardant properties, which makes it particularly suitable for applications where fire-retardancy is an issue.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a § 371 National Stage Application of PCT / EP2012 / 056845, filed Apr. 13, 2012, which claims priority to European Application No. 11162442.5, filed Apr. 14, 2011, U.S. Provisional Application No. 61 / 475,393, filed Apr. 14, 2011, European Application No. 11162445.8, filed Apr. 14, 2011, and U.S. Provisional Application No. 61 / 475,411, Apr. 14, 2011.BACKGROUND OF THE INVENTIONField of the Invention[0002]The present invention pertains to a composite material comprising a filler and a specific polymer. More in particular, the present invention pertains to a composite material comprising a synthetic particulate or fibrous filler and a specific polymer.[0003]Composite materials comprising synthetic particulate or fibrous fillers are well known in the art. They include, for example, materials reinforced with glass fibers, polymer fibers, or carbon fibers.Description of Related Art[0004]Conventional polymers used in the manufact...

Claims

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Application Information

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IPC IPC(8): C08J5/24C08K7/14B29C70/58C08L67/00A62B17/00
CPCA62B17/003B29C70/58C08J5/24C08L67/00C08K7/14C08L2205/16B29K2995/0016C08J2367/00C08J5/043
Inventor ALBERTS, ALBERT HENDERIKUSROTHENBERG, GADI
Owner PLANTICS BV